package com.atguigu.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

/**
 * @author sunhl
 * @Description: 1-69-1 商品服务-API-品牌管理-JSR303自定义校验注解
 *              自定义校验的实现类
 * @Date: created in 2020/10/17 14:52
 * @Modified By:
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set = new HashSet<>();

    /**
     * 初始化方法, 我们在这里完成注解校验实现类的初始化
     * @param constraintAnnotation
     */
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals = constraintAnnotation.vals();
        for (int val : vals) {
            set.add(val);
        }
    }

    /**
     * 判断是否校验成功
     * @param value 需要校验的值
     * @param context
     * @return
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        return set.contains(value);
    }
}
